CVE-2018-18559 - CVE House
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Status published High CVE-2018-18559

In the Linux kernel through 4.19, a use-after-free can occur...

Vulnerability Description

In the Linux kernel through 4.19, a use-after-free can occur due to a race condition between fanout_add from setsockopt and bind on an AF_PACKET socket. This issue exists because of the 15fe076edea787807a7cdc168df832544b58eba6 incomplete fix for a race condition. The code mishandles a certain multithreaded case involving a packet_do_bind unregister action followed by a packet_notifier register action. Later, packet_release operates on only one of the two applicable linked lists. The attacker can achieve Program Counter control.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

linux kernel, openshift container platform, virtualization host, enterprise linux desktop, enterprise linux server, enterprise linux server aus, enterprise linux server eus, enterprise linux server tus, enterprise linux workstation
Vulnerable Versions:
3.2.95, 3.14.58, 3.18.25, 4.1.14, 4.2.7, 4.3.1, 4.5, 4.10, 3.11, 4.0, 7.0, 7.6

Timeline

Official Publish: October 22nd, 2018
Last Modified: August 5th, 2024
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.